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Creator | Title | Description | Subject | Date |
| 126 |
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Stringfellow, Gerald B. | Vapor phase interaction of trimethylaluminum with graphite during OMVPE | We have used a molecular beam mass spectrometer to study the interaction of trimethylaluminum (TMA) with graphite surfaces. Our results indicate that a strong adsorption effect occurs which explains phenomena occuring during OMVPE growth of AlxGa1-xAs, such as long A1 transients, oxygen gettering, a... | Organometallic vapor phase epitaxy; Thermodynamics; Graphite; Trimethylaluminum | 1982 |
| 127 |
 |
Bhanu, Bir | Segmentation of images having unimodal distributions | A gradient relaxation method based on maximizing a criterion function is studied and compared to the nonlinear probabilistic relaxation method for the purpose of segmentation of images having unimodal distributions. Although both methods provide comparable segmentation results, the gradient method h... | Gradient relaxation method; Image segmentation; Segmentation algorithm | 1982 |
| 128 |
 |
Stringfellow, Gerald B. | Thermodynamic aspects of organometallic VPE | Organometallic vapor phase epitaxy (OMVPE) is a new crystal growth technique which is rapidly gaining popularity due to its simplicity, flexibility and proven ability to grow excellent quality III/V compounds and alloys for device applications. | Organometallic vapor phase epitaxy; Thermodynamics | 1982 |
| 129 |
 |
Lindstrom, Gary E. | Consistency and currency in functional databases | We consider a hybrid model of databases, in which a functional component T is defined as an extension to an imperative component B. T. is loosely coupled to B through a highly parallel function network N. which provides a simple failsafe test of whether an existing assignment of values to a given vi... | Functional databases | 1982 |
| 130 |
 |
Carter, Tony M. | ASSASSIN : a CAD system for self-timed control-unit design | Many software systems exist for automatically implementing synchronous state machines . Presented is this paper is a software system -- ASSASSIN -- for the design and automatic layout of self-timed (or speed- independent) control units as integrated circuit modules. | ASSASSIN; Self-timed control units | 1982 |
| 131 |
 |
Subrahmanyam, P.A. | Modeling of call - by - need and stream primitives using CCS | The semantics of an applicative language are presented using the algebraic primitives introduced in CCS. In particular, the language constructs modeled allow for nondeterminism, stream processing and demand driven (call by need) evaluation. | Applicative language; Semantics; Algebraic primitives; CCS | 1982 |
| 132 |
 |
Pershing, David W. | Influence of coal composition on the fate of volatile and char nitrogen during combustion | Fifty coals from North America, Europe, Asia, South Africa and Australia were burned in a 21 kW, refractory-lined tunnel furnace to determine the influence of coal properties on the fate of volatile and char nitrogen. Excess air fuel NO emissions (as determined by combustion in Ar/02/C02) ranged fro... | Coal composition; Char nitrogen; Volatile nitrogen; NO emissions | 1982 |
| 133 |
 |
Organick, Elliott I. | ADA to silicon transformations: the outline of a method | This report explores the contention that a high-order language specification of a machine (such as an Ada program) can be methodically transformed into a hardware representation of that machine. One series of well-defined steps through which such transformations can take place is presented in this i... | ADA program; High-order language specification | 1982 |
| 134 |
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Subrahmanyam, P.A. | FUNLOG = functions + logic: a computational model integrating logic programming and functional programming (Rev. May 1983) | Funlog, a computational model which attempts to integrate functional programming and logic programming is described. The model supports computations with infinite data structures without the introduction of complex control issues at the user-level. Control characteristics are improved as compared wi... | FUNLOG; Functional programming; Logic programming | 1983 |
| 135 |
 |
Mathews, V. John | On using the short-time unbiased spectrum estimation algorithm for estimating time delays and magnitude squared coherence functions | This paper introduces novel applications of the short-time unbiased sprectral estimation (STUSE) algorithm, which adds biased estimates to yield unbiased spectral estimates. It is shown that STUSE algorithm is an effective tool for estimating time delays and magnitude-squared coherence (MSC) functio... | | 1983 |
| 136 |
 |
Organick, Elliott I.; Lindstrom, Gary E. | Transparent interface between software and hardware versions of ADA compilation units | The Ada-to-Silicon project at Utah is developing a methodology (and associated software and hardware) for the high level testing of Ada compilation units that are represented as hardware components (circuitry). There are two motivations for this research. | Ada-to-Silicon; ADA compilation units | 1983 |
| 137 |
 |
Henderson, Thomas C.; Hansen, Charles D. | A fault tolerant sensor scheme | Multi-sensor systems pose the problem of how to coherently and efficiently treat the data provided by the various sensors. However. the availability of greater numbers of sensors also broadens the ability to build fault tolerant sensor systems. We define a framework in which sensors can be abstractl... | Multi-sensor systems; Logical sensors | 1983 |
| 138 |
 |
Horch, Kenneth W.; Tuckett, Robert P.; Burgess, Paul Richard | Neural signal for skin indentation depth. I. Changing indentations | Psychophysical tests on human subjects showed that judgments of skin indentation depth made when the fingertip was indented at rates from 0.2 to 16 mm/set were quite insensitive to changes in indentation velocity. Similar results were obtained on the forearm at indentation velocities of 0.4 to 16... | Skin; Indentation; Nerve impulses | 1983 |
| 139 |
 |
Mathews, V. John | Detection and estimation with fixed lag for abruptly changing systems | The problem of state estimation and system structure detection for discrete-time stochastic systems with parameters which may switch among a finite set of values is considered. The switchings are modeled by a semi-Markov, or Markov, chain with known transition statistics. A fixed time delay (lag) is... | | 1983 |
| 140 |
 |
Organick, Elliott I. | Transformation of Ada program units into silicon (Fourth Semiannual technical report 83 Apr 1 - 83 Nov 15) | This report, augmented with several appended papers and supplementary reports describes the most recent six months of work on the research project, "Transformation of Ada Programs into Silicon". This report is also the last of the series to be rendered under the current contact. | Transformation; Ada program units; Silicon | 1983 |
| 141 |
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Organick, Elliott I.; Lindstrom, Gary E. | Transforming an Ada program unit to silicon and verifying its behavior in an Ada environment: a first experiment | Microelectronics technology has advanced so rapidly and been so successful that we are new having to build large systems with a multitude of diverse, interacting components. Some components of these systems exhibit distinct architectures and may, in fact, be implemented following different choices o... | Transformation; Ada program units; Silicon | 1983 |
| 142 |
 |
Pershing, David W. | Formation and control of NO emissions from coal-fired spreader-stoker boilers | Stoker coal-fired furnaces are significant in terms of coal consumption and environmental impact; however, they have received little research attention. This paper describes the results of a study on the formation and control of nitrogen oxides in coal-fired spreader-stoker systems. Three scales of... | Stoker coal-fired furnaces | 1983 |
| 143 |
 |
Henderson, Thomas C. | Pattern recognition in a multi-sensor environment | Current pattern recognition systems tend to operate on a single sensor, e.g., a camera. however. the need is now evident for pattern recognition systems which can operate in multi-sensor environments. For example, a robotics workstation may use range finders. cameras, tactile pads, etc. The Multi-se... | Pattern recognition; Multi-sensor; Multi-sensor Kernel System; MKS | 1983 |
| 144 |
 |
Henderson, Thomas C. | Some experiments with the 3-D hough shape transform | The application of the Hough shape transform to the problem of the identification and localization of objects in 3-space is presented. The rotation-invariant Hough transform is defined which permits the determination of the geometric transformation from the model to the detected object. Given a samp... | Hough shape transform | 1983 |
| 145 |
 |
Pershing, David W.; Slaughter, David Michael | Parameters influencing the evolution and oxidation of sulfur in suspension phase coal combustion | Stoker coal-fired boiler furnaces are significant in terms of coal consumption and environmental impact; however, they have received relatively little research attention. This paper describes the results of a two-year study on the formation of sulfur oxides in the suspension phase of a coal-fired s... | Stoker coal-fired furnaces | 1983 |
| 146 |
 |
Subrahmanyam, P.A. | TRACIS: transformations on Ada for circuit synthesis a report on the methodology for a silicon compiler | This report describes in detail, the ongoing design and implementation of a transformation system, for compiling specifications of integrated circuits into silicon. There are many levels in this process, and the area that we focus on produces target specifications of asynchronous and synchronous con... | TRACIS; transformation system | 1983 |
| 147 |
 |
Christensen, Douglas A. | Interface of forest and agriculture in nonpoint pollution control | Management practices of agriculture, including conservation and tillage options, recently have received a great deal of attention with respect to their impact upon the environment. Research efforts have focused both on the direct impacts of reduced on-site productivity resulting from the erosion of ... | Suspended sediment; Channel erosion; Silviculture | 1983 |
| 148 |
 |
Horch, Kenneth W.; Tuckett, Robert P.; Burgess, Paul Richard | Neural signal for skin indentation depth. II. Steady indentations | The glabrous skin of the monkey's hand was stimulated with a waveform that indented the skin at a rate of 0.4 mm/set, held the skin steadily or nearly steadily indented for 12 set or longer, and then retracted back to the starting position. Recordings were made of activity in single afferent fibe... | Skin; Indentation; Nerve impulses | 1983 |
| 149 |
 |
Lindstrom, Gary E. | The key node method: a highly-parallel alpha-beta algorithm | A new parallel formulation of the alpha-beta algorithm for minimax game tree searching is presented. Its chief characteristic is incremental information sharing among subsearch processes in the form of "provisional" node value communication. Such "eager" communication can offer the double benefit of... | Key node method; Alpha-beta algorithm; Minimax; Game tree searching | 1983 |
| 150 |
 |
Stringfellow, Gerald B. | Miscibility gaps and spinodal decomposition in III/V quaternary alloys of the type AxByC1−x−yD | Thermodynamic concepts have been developed for the calculation of solid-phase miscibility gaps and spinodal decomposition in quaternary alloys of the type AxByC1−x−yD. These concepts have been applied to the analysis of III/V quaternary alloys using the delta-lattice-parameter (DLP) solution mod... | Thermodynamics; Quartenary alloys; Coherent decomposition | 1983-01 |
